Product Features Nano Multi-Layer Coating (18 Layers) 6061 Lightweight Aluminum Water and Stain Resistant Made of K9 Optical Glass In the Box 7artisans Photoelectric 55mm GND0.9 Filter Overview FunctionGND Graduated Neutral Density Filter helps manage the lighting condition during golden hours, balancing the light between ground and sky to achieve better cloud detail & color saturation. Import Optical Glass This GND filter is made of optical glass, each side of this glass with waterproof,scratch resistant and oil proof coating, easy for cleaning and carrying, suitable for all adventures. Nanotec Coating Both sides of the glass with double side polishing technology, ensuring high-quality images even on the telephoto lens, the gradient coating technology ensuring uniform color and accurate stop, dimming without deviation. No Vignetting Frame Ultra slim aviation aluminum glass frame with non-slip CNC design, easily install on lens, no vignetting and dark conner even on wide-angle and telephoto lens. Reviews There are no reviews yet. Be the first to review “7artisans Photoelectric GND0.9 Filter – 55mm” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.